Name: Proanthocyanidins
Brand: Selleck Chemicals
SKU: S5105
Availability: InStock
Rating: 5 (2 reviews)

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Quality Control

Batch: Purity: 100.00%

100.00

Related Targets	Integrase Antibiotics Anti-infection Fungal Antiviral COVID-19 Parasite Reverse Transcriptase HIV HCV Protease
Other Bacterial Inhibitors	BTZ043 Racemate Teicoplanin Pefloxacin Mesylate Ceftiofur Solithromycin 6-Methoxydihydrosanguinarine Flagelin 22 Taurolidine Skatole Berberine Sulfate

Solubility

In vitro
Batch:

DMSO : 100 mg/mL (168.2 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	10mg/ml (16.82mM)	Taking the 1 mL working solution as an example, add 50 μL of 200 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5% DMSO 1 95% Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	1.25mg/ml (2.10mM)	Taking the 1 mL working solution as an example, add 50 μL of 25 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg

Average weight of animals: g

Dosing volume per animal: μL

Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO

%

% Tween 80

% ddH₂O

% DMSO

+

%

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Chemical Information, Storage & Stability

Molecular Weight	594.52	Formula	C₃₀H₂₆O₁₃	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	20347-71-1	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent

Read more about storage stability stock solution CAS number

Mechanism of Action

In vitro	Proanthocyanidins have also been shown to inhibit lipid peroxidation, platelet aggregation, capillary permeability and fragility. They have been shown to modulate the activity of regulatory enzymes including cyclooxygenase, lipooxygenase, protein kinase C, angiotensin-converting enzyme, hyaluronidase enzyme and cytochrome P450 activities.
In vivo	Proanthocyanidins have been shown to play important roles in several biological processes resulting in health benefits. For instance, this compound has been reported to have antioxidant, anti-inflammatory, antimicrobial, antiproliferative, cardioprotective, hypolipidemic and antidiabetic activities. It induces a strong hypotriglyceridemic effect in experimental animals, in part by inhibiting VLDL secretion by the liver. Animal studies demonstrate that these compounds reduce the plasma levels of atherogenic apolipoprotein B-triglyceride-rich lipoproteins and LDL-cholesterol but increase antiatherogenic HDL-cholesterol. They are thought to be poorly absorbable and highly metabolized by gut microflora before absorption. They affects lipid metabolism and has important positive consequences on cardiovascular diseases.
References	[1] https://pubmed.ncbi.nlm.nih.gov/21998738/ [2] https://pubmed.ncbi.nlm.nih.gov/19960459/ [3] https://pubmed.ncbi.nlm.nih.gov/12074978/

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2026-08-26)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT05062954	COMPLETED	Abdominal Obesity	Laval University	2021-10-21
NCT06352099	COMPLETED	Cognitive Impairment; Old Age; Debility	Fondazione Policlinico Universitario Agostino Gemelli IRCCS	2024-05-02
NCT05109455	COMPLETED	Kidney Transplant Infection	Arafarma Group, S.A.	2019-04-16	PHASE4
NCT05015387	COMPLETED	Periodontitis, Adult	Lithuanian University of Health Sciences	2019-01-09	PHASE2
NCT02572895	UNKNOWN	Urinary Tract Infections	Laval University	2015-08	PHASE1
NCT05140629	Completed	Hyperglycemia Postprandial	Egas Moniz - Cooperativa de Ensino Superior CRL	2017-01-02	Not Applicable

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Proanthocyanidins Bacterial inhibitor

Chemical Structure

Molecular Weight: 594.52